package io_homework;

import java.io.*;

public class Copy2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("homepage-popup-adv_6.jpg");
        FileOutputStream fos = new FileOutputStream("homepage-popup-adv_6_copy3.jpg");
        long start = System.currentTimeMillis();
        byte[]data = new byte[1024*10];
        while (fis.read(data)!=-1){
            fos.write(data);
        }
        long end =System.currentTimeMillis();
        System.out.println((end-start)+"ms复制完成");
        fis.close();
        fos.close();
    }
}
